Machine for making paper tubes



- R. A.. SBN'TMAN'. MACHINE POR MAKING PAPER TUBES.

(Nuo Model.) n 2 Sheets-Sheet 2.v

1 R. A. SENTMAN.

'MACHINE PoR MAKING PAPER TUBES.

Patented'eh; 7, "1888.

INVENTDFI WITNEEEE c I l' NITED STATES PATENT OEEICE. p y

ROBERT A. SENTMAN, PHILADELPHIA, PENNSYLVANIA.

MACHINE FOR MAKING'PAPERTUBS.

SPECIFICATION forming part of Letters Patent No. 377,643, dated February '7, 1888.

Application filed July 12, 1886. Serial No. 207,807. (No model.)

To all whom 15 may concern:

I'Se it known that I, ROBERT A. SENTMAN, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Machines for Making Paper Tubes; and I do hereby declare l the following to be a'full, clear, and exact description of the invention, reference beinghad to the accompanying drawings, which form part of this specification, in which- Figure I is a perspective of a machine embodying my improvements, and Fig. 2 is a perspective of details of reel.

My invention has for its object to provide amachine for constructing or producing paper discharge end of the machine.

My improvements consist in the peculiar construction and combinations of parts, hereinafter fully described and claimed.

Referring to the accompanying drawings, A designates the frame of the machine, and B B standards thereon, affording supports for a spindle or shaft, C, which receives a roll of paper, which roll is designed to be converted -sills c.

into flattened tubes or cylinders.

D is a presser-roll, and D a barsustained on side supports, d d, which rest on the sills or side rails, a a, of the frame A.

E E are cutters, which maybe ordinary shoe-makers knives, comprising each a' blade, e, and handle e; The blades of the cutters pass through and are clamped in kerfs or openlngs c2 in the cutter-board E', said board being sustained on uprights e, that rest ou the E2 is a leaf supported on and projecting rearwardly from the `uprights c3.

. G G are paste-rollers, all mounted on one shaft and dipping .in the same trongh,G, said shaft having its bearings and said trough being supportedon the sills a c of the frame A.

G2 G2 are pressure-rollers fitted on a shaft,

g', which has its bearings in the ends g3 of a frame, G3, that rests on the sills a c and is secured thereto. v

H H are guides in the form of blocks, which rest upon the bed-piece A. -Said guide-blocks have their interior walls beveled or curved, so as to make flaring or tapering passages between them, there being a pair of these guides for each strip of paper, as hereinafter eX- plained.

I I are jacks, consisting of bars fulcrumed loosely on a transverse rod, I', sustained on supports I2 on the frame A, and having at their lower, ends and on their under sides blocks i. which enter between the walls ofthe guides H H, as shown.

K and L are uprights duly supported on the frame A, and have openings, as shown, in

which are fitted rings or eyelets lcand Z. Said v rings Z are of less diameter than the rings k and in a more elevated plane than the latter.

M M are rings supported on an incline, M, resting upon the bed-piece A', in a plane above that of the ringsvl, these rings M being of greater diameter than the rings la. The

rings M are fitted on the board or support M', which is slitted at m m to receive and hold them clamped in position, so that one-half or approximately one-half, or a section only, of each of said rings shall be above said board to form the channels through which the paper tubes are drawn and by which said tubes are partly compressed'or flattened. These rings M are vertically adjustable in their support, and may be depressed or elevated therein, so as to project more orless above the board, and thereby vary the diameters or widths of the passages which they form. Said ringsM form gages for the 'tubes and regulate the width which the latter will assume in formation, as said tubes will become in width equal to the greatest horizontal width or transverse line of the exposed parts of said rings or the parts thereof above the board-or support M. To adj ust the rings M downwardly, a tap of a hammeron their upper sides is sufficient, and they may be drawn upwardly by `hand or the aid .of a tool. In operation said rings are in effect half-round or segmentalopenings, thepurpose of which is to compress -or partly Hatten the tubes to form guides for the latter and to regu late their width. l l

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As only the upper parts of the rings M M operate directly on the tubes, it is not essential that said rings should be complete circles, and their lower parts, or parts below the upper surface of the board or support M', may be of any convenient shape.

M2 is a presserroller having its bearings on standards m m', supported on the sills a a.

N represents a reel whoseV shaft N' rests in bearings in standards N 2 on the frame A. Said reel comprises two parallel blades, n n, secured to two radial arms, n n, one or both of said blades being pivoted at one end and detachably secured at the other, so as to permit it or them to be loosened and moved toward the shaft to allow removal of the tubes wound thereon, as hereinafter set forth.

In Fig. 2 is shown the detail construction of the reel N, the cross-bars n a' being attached to central hubs, n2 ai, having openings n3 a3 for the reception of the shaft N', which is detachably secured Aby pins a* n,passing through openings in it and in the hubs n a2. The blades n n are pivotally fastened by bolts to one of the cross-bars n and by pins to the other cross-bar, so that by removing said pins or one of them the blades or one of them may be moved toward the shaft to collapse the reel. The bars n n and blades a n may be said to constitute the frame of the reel. To expedite work, several such frames may be provided, for which one shaft will answer, said shaft being easily taken out of one full frame by withdrawing the pins at n* and inserting it and them in an empty frame.

To fasten the ends of the paper tubes to the reel, one of the blades n of the latter is provided with a strip, a5, hinged at ne. The ends of the tubes are inserted between said strip and its blade, and blocks or wedges a7 ai then driven in between said strip and the shaft N.

The operation is substantially as follows: The outer end of the roll of paper on shaft C is drawn under presser-roller D and bar D', and thence against the knives E E, which latter cut it into long strips. Said strips are passed between the rollers G and G2 and have lines of paste applied to their under sides and near one edge only, the rollers G2 pressing the strips against the rollers G while the latter apply the paste. The strips then pass between the guides H H and beneath the jacks I I, said guides and jacks giving to the strips a gutter shape, depressing them in the middle and folding or turning their edges upwardly. These gutter-shaped strips now pass outwardly to and through the rings k and Z, ascending as they proceed, the result being that they are still further folded, so that the unpasted edges pass over and lap upon the pasted edges, thus forming tubes of cylindrical form. These cylindrical tubes are now drawn through the exposed or upper half or section of the rings M M, by which they are partly compressed or somewhat flattened, and thence they pass beneath the presser-roller M, by which they are further or completely flattened. The ends of the flattened tubes are now fastened securely to the reel N, and the latter revolved by means of a handle applied to the projecting end n of its shaft. The continued revolution of this shaft unwinds the paper from the roll on shaft C, draws it against the knives E E, by which it is cut into strips, and also draws these strips between the guides, under the jacks, through the eyelets or rings,and under the final roller, M2,Whereby the paper in passing through the machine is converted from a wide web into a series of flat tubes, which latter are separately wound upon a reel, the entire process being accomplished without the employment of gearing and by means of draft applied to the paper itself. 'Io remove the rolls of tubes from the reel, the latter is lifted off or out of lts supports and the movable blade u loosened and moved toward the shaft, whereupon said rolls can be readily taken or slipped off said reel.

I'may here remark that I have found it essential or important to use a fiat reel upon which to wind the flattened tubes,as they cannot, according to my experience, be successfully wound into a small compass upon a round or circular reel.

The form of cutters employed namely, knives supported in a board-is an economic construction or arrangement, as the original cost of such knives is but slight and they can very readily be sharpened when dulled and replaced when worn out. So, too, said knives can readily be adjusted by a mere downward tap on their handles to bring a fresh portion of their edges into alignment with the paper whenever required, the cutter-board in which said knives are supported clamping said knives, so as to hold them steadfast when in operation, yet permitting their ready withdrawal and speedy adjustment Whenever desired.

The paste and pressure rollers G G2 are so arranged that the paste is applied to the under side ofthe paper strips, the latter being pressed against the-rollers beneath while such paste is being applied, so that just sufficient paste for the required purpose, and no more, is put on, and when the strips are folded the original under side of the paper comes uppermost, the unpasted edges lapping over and upon the pasted edges.

The means for effecting the conversion or transformation ofthe gutter-shaped strips (produced by the conjoint action of the guides H and jacks I) into tubular cylinders comprise only the two sets of rings k and Z,which are inexpensive, yet very efficient, as are also the rings or flatteners and gages M.

To prevent lateral movement of the strip it-#that is, a sidewise movement parallel with its bladewhich would strain the hinge connecting said strip and blade, a staple, n, may be employed, said staple passing through openings formed for its reception in said strip and blade. This permits the strip to be freely moved on the hinge when necessary, yet keeps IOO IIS

it in alignment with its blade. Said staple is inserted from the shaft side, and cannot loseits position when the bladeV to which it is fastened is locked or fast.

What I claim as `my invention is- 1. A machine for converting a web or roll of paper into multiple rolls of pasted and fiati tened tubes, said machine comprising, in combination, knives for cutting they paper into strips, rollers for applying paste to the strips, jacks and guides forchanneling the strips,

vrings for folding the channeled -strips yinto tubes and for iiattening the same, and a fiat reel for winding the tubes and drawing the paper completely through the machine, said parts being constructed and combined' substantially as shown and described.

2. In a machine for forming paper tubes, the combination of jacks and guides whereby a preliminary or part fold is given to paper strips, with rings of different diameters progressively arranged in separate and independent series, whereby the channeled or partlyfolded strips are caused `to assume cylindrical form, substantially as'shown and described.

3. In a machine for folding strips into tubes, and comprising means, substantially as described, for forming tubes into cylindrical form, the combination, with a support, M', of gages consisting of rings lvLtted therein so as to-project partly above Vtheir support, said rings being vertically adjustable in their support to vary the extent vof their projection, substantially as shown and described.

4. In a machine forv forming flattened paper tubes, the combination, with means, substantially as described, for causing paper strips to assume cylindrical form, `of gages consisting of g rings or eyelets having a portion thereof extending above the support and forming halfround or segmental passages or openingsfor partly compressing or flattening such cylinders, substantially as shown and described.

5. In a machine for forming paper tubes, the

combination, with means,'substantially such as described, for partly folding or channeling a strip of paper, of means for completely foldn ing said strips or causing them to assume cylindrical shape and then to atten them, such means consisting of two rings of different diameters and in different planes, and a half or partly exposed ring of greaterdiameter and on a higher plane than said folding-rings, substantially as shown and described.

6. In a machine for forming paper tubes, the combination, with a reel -frame comprising blades 'n n and a fastening-strip, a5, of blocks or Wedges nl, substantially as shown and described. f

7. In a machine for forming paper tubes, the

combination, with a reeLbIade, n, having a hinged or movable strip, n, of a staple, ng, for preventing strain on the hinge connecting 'said blade and strip and for keeping said blade and strip in alignment, substantially as shown and described.

In testimony that I claim the foregoing I have hereunto se't my hand, this 8th day of July, 1886.

. ROBERT A. SENTMAN.

Witnesses: e M. D. CoNNoLLY,

R. DALE SPARHAWK. 

